Process of producing and uniting heads to barrels



G. C. BRAINARD.

PROCESS OF PRODUCING AND UNITING HEADS T0 BARRELS.

APPLICATION FILED SEPT. 20. 1917.

UNITED STA-TES- PATENT OFFICE.

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- PBOQESS 0F FROlJUCIIlG AND UNIIIN G '10 BARRELS.

specification Letters Patent. Patented Aug; 16, 1921.

Application filed September 20, 1917. Serial no. 192,295.

To all whom it may concern:

Be it known that l, Gnonon C. BRAINARD, a citizen of the United States, residing at East Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful improvement in Processes of Producing and Uniting Heads to Barrels, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates to barrels, and more particularly to the er of forming and applying the heads to the bodies thereof. is the general object of the invention to so construct and apply the heads of such bar rels as to make it possible to employ in the construction thereo'i metal of lighter gage than is ordinarily considered practicable for this purpose; also to provide a secure and non-leaking connection between the head and the barrel body.

The barrel body may be prepared in any suitable manner, it being preferred to employ drawn or pressed metal in the production of such body. Where the barrel body is bilged, it is preferred to provide the open end with a cylindrical extension. I preferably form the head from a circular metal plate which is first cupped, trimmed, annealed and cleaned, and is then telescoped so as to provide a skirt surrounding the wall of the cup, the skirt preferably being shorter than said wall and forming with the cup Wall a wall of doubled metal. I then roll the doubled wall of metal inwardly to form a rounded double walled chime which is preferably forced into engagement with the head in a line within the periphery of the head as well as into engagement with the inner of such walls, whereby the head is braced by the chime and the joint to be subsequently formed between said walls and the barrel is prevented from opening. The diameter of the skirt will be identical with the diameter of the open end of the barrel so that the skirt may fit against such end. p

I then insert the headwithin the open end of the barrel with the skirt in engagement with such open end. The skirt and the'end of the barrel body are then united end-to end, as by means of a welding torch, tlllli head being suitably supported during this-.- J

'6 ,fthefend 6 whereof abuts against the mner operation, as by screw pressure. A weld is inner of the double walls of the metal. Between the l 1ne of engagement of the chime with the head and the periphery of said head, the head is preferably curved so as to may be inserted well within the end of the barrel and a secure weld joint'is formed between such outer wall and the barrel body and also between these members and the inner wall; and the weld is so located with reference to the head and the barrel that it is free from undue strains during use of the barrel.

In the drawin s forming part hereof, I

have illustrated t e manner of forming the head and the barrel and of appl ing the head to a barrel body. In these d iawings, Figure 1 represents two steps in the formation of the head, the views being vertical sections; Fig. 2 represents a central lon itudinal section through the open end of t e barrel and through the finished head, the parts being shown in the positions which they occupy prior to the insertion of the head, the parts being slightly out of proportion for convenience in illustration; Fig. 3 is a view similar to Fig. 2 showing the position of the parts after the head has been inserted within the body; and Fig. 4.- is an enlarged sectional view through the head and barrel illustrating the weld between the arts. P In the aforesaid drawings Fig. 1 illustrates at 1 the cup shaped blank from which the head is to be-formed and at 2 the blank after being telescoped'. 3 denotes the transverse wall of the head, 4 the cup shaped wall projecting therefrom, and 5 the skirt which surrounds the outer portion of the wall 4. After the telescoping operation the head is formedfinto the shape illustrated in Fig. 2. The double wall (walls 4 and 5) is rolled orzcurled inwardly to form a rounded chime wall 4 at a point adjacent the lower edge of Y sure, durin barr 1..

M theiskirt 5; The chime 6 is also caused to en gagze the transversewall 3 in a line, indicated which is within and spaced from the peri hery'. of the head. The transverse wall transverse wall of the head, as by screw pres: the operation of forming the chime 6. he head thus formed is now ready to be assembled on and united to the In Fi a bilge barrel body having a cylin 'cal end portion-8". This end portion is adapted to fit tightly overthe vertical wall 4 of the head and to abut against the lower edge of the skirt 5 when the head is inserted in the barrel body, as is indicated'in' Fig. -3. The

abutting joint between the skirt 5 and the end 8 of the barrel body is indicated at 9.

With the head inserted within the barrel body and firmly held therein, as indicated in Fig. 3, the end 8" of the barrel and the skirt 5 are united or welded. end to end, as by means of a welding torch, andv simultaneouslytherewith a weld'is also formed between the inner wall 4 on one hand and the end 8 and skirt 5 on the other, as'is indi-' catedin Fig. 4' at 10..

w B constructing and applying a barrel hea to the body in the manner herein described, I amrenabled to employ metal as thin as .078" stock and at'the same time produce -a head and chime which will withstand all ordinary. incidents of use. Furthermore, I

am enabled 'to produce a barrel wherein the joint between the head and the body will be leak-proof, wherein the joint will be maintainedin such condition, and wherein the head will not be liable to bulge or give under service conditions.

Having thus described my 'invention,what I claim is ,1. The process of forminga head and se-- curing the same to a metal barrel which comprises drawing a metal blank into cup shape,

telescoping the said blank to provide .a skirt of said skirt and barrel body.

2.. The process .of forming a head and securing the same to a metal barrel which comprises drawing a metal blank into cup shape, telescoping the'said blank to providea skirt surrounding the sidewall thereof and of less depth than saidside wall, inserting the head .thus formed within the open end of the barrel body so that the edge of said skirtabuts the edgeof said barrel body, and

homogeneous y ,uniting theabutting edges of said skirt and barrel body. p

3. The process of forming a head'and se- 2 and 3,8 denotes the open end of v prises drawinga metal blank into cup shape,

telescoping the'said blank to provide-a sk rt surrounding the side wall thereof and of 3 is ormed with the rounded peri heral por-, tion 3 and this shape may be g1ven to thelessdepth than said side wall, pressing inwardly the double wall of metalto provide an inwardly extending chime, insertlng the headthus formed within the open end of.- the barrel body, and uniting the and the end of the barrel body.

said skirt 4. The processof forminga head and'securingthe same to a metal barrel which.com prises drawing a metal blank into cup shape, telescoping the said blank to providea skirt surrounding the side wall thereof, pressing inwardly the double wall of metal to provide a chime, inserting the head thus formed I within the open end of the metal barrel body, and uniting the said skirt and the end of the barrel body.

5. The process of forming a'headand securing the same to a .metal barrel which comprises drawing a metal blank into cup shape, telescoping the said blank to provide a skirt surrounding the'sidewall thereof and of less depththan said wall, pressing inwardly the double wall-of metal'to form a rounded chime which. engages the barrel. head, and uniti'n the head thus formedto the open end of t e barrel body.

6. curing the'same-t'o a metal barrel which comprises drawing a metal blank into cup shape,

telescoping the said blank to provide a skirt surrounding the side wall thereof, pressing inwardly the double wall of metal .to form a rounded chime which engages the barrel head and also the innerof said doubled walls, and uniting the head thus formed the] open end of the barrel body.

he process of forming a head and sehe process of forming a head and securing the same to a metal barrel which oomprises providing the head with a marginal double wall, pressing the double wall inwardly to provide a chime, inserting the head thus formed into the open end of a. metal barrel, and uniting the outer of said walls of the end of the barrel.

.-8. The process of forming a head and securing the same to a metal barrel which comprises roviding the head with a mar-' ginal doub e wall the outer wall of which is of less depth than the inner wall, pressing the ,double wall inwardly to provide a chime, inserting the head thus formed into the open end ofa metal barrel, and uniting the outer of said walls-to the end of the barrel. 1

9. The process of forming .a head and securingthe same to a metal barrel which comprises roviding the head witha marginal 'doublh wall, pressing the double wall inwardly to form a rounded chime engagwalls to the end of the barrel and the inner wall to said end and to said outer wall at the joint therebetween.

10. The process of forming a head and securing the same to a metal barrel which consists in providing the head with a marginal double wall, rolling the double wall inwardly to form a rounded chime engaging the head and the inner of said walls, subjecting said head to pressure during such rolling operation, whereby the head will be bulged outwardly within the line of engagement between said chime and said head, inserting the head within the open end of a barrel, and uniting the outer of said walls to said barrel.

11. The process of forming a head and securing the same to a metal barrel which consists in providing the head with a marginal double wall rolling the double wall inwardly to form a rounded chime engaging the head and the inner of said walls, subjecting said head to pressure during such rolling operation whereby the head will be bulged outwardly within the line of engagement between said chime and said head, inserting the head within the open end of a barrel, and welding the outer of said Walls and said barrel end to each other and to the inner of said walls.

12. The process of forming a head and securing the same to a metal barrel which consists in drawing a metal blank into cup shape, telescoping the said blank to provide a skirt surrounding the side wall thereof and of less depth than said wall, pressing inwardly the double wall of metal to form a chime which engages the barrel head and also the inner of said doubled walls, subjecting the head to pressure during the pressing operation to cause the same to bulge outwardly within the line of engagement between said chime and said head. inserting the head within a barrel with the side wall of said head engaging the inner surface of the open end thereof, and with the skirt abutting thereagainst and welding the open end and the skirt, to each other and to the side wall.

In testimony whereof I hereunto affix my signature.

GEORGE C. BRAINARD. I 

